CVE-2013-6391

Severity: medium (CVSS 5.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2013-12-14 · updated 2026-06-17
Weakness: CWE-269

Description

The ec2tokens API in OpenStack Identity (Keystone) before Havana 2013.2.1 and Icehouse before icehouse-2 does not return a trust-scoped token when one is received, which allows remote trust users to gain privileges by generating EC2 credentials from a trust-scoped token and using them in an ec2tokens API request.

Affected products

Canonical Ubuntu Linux: 13.10
OpenStack Keystone: from 2013.2 before 2013.2.1 — fixed in 2013.2.1
OpenStack: 4.0

How to fix

Upgrade to a fixed version: OpenStack Keystone 2013.2.1. Check the vendor advisory for mitigations.

References

http://rhn.redhat.com/errata/RHSA-2014-0089.html
http://secunia.com/advisories/56079
http://secunia.com/advisories/56154
http://www.openwall.com/lists/oss-security/2013/12/11/7
http://www.securityfocus.com/bid/64253
http://www.ubuntu.com/usn/USN-2061-1
https://bugs.launchpad.net/keystone/+bug/1242597
https://exchange.xforce.ibmcloud.com/vulnerabilities/89657
http://rhn.redhat.com/errata/RHSA-2014-0089.html
http://secunia.com/advisories/56079
http://secunia.com/advisories/56154
http://www.openwall.com/lists/oss-security/2013/12/11/7

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